Toyota Jidosha Kabushiki Kaisha

Aisin Aw Co., Ltd.

Zenrin Co., Ltd.

Denso Corporation

Toyota Motor (china) Investment Co., Ltd.

Tomoki Kodan

Hironobu Sugimoto

Motohiro Nakamura

Norihiro Nakamura

Kuniaki Tanaka

Kimiyoshi Sawai

Kazuteru Maekawa

Atsushi Ikeno

Sadahiro Koshiba

Hiroyuki Tashiro

Yoshitaka Kato

Seiji Takahata

Tomohiko Masutani

Takayuki Miyajima

Satoshi Hirano

Toshiaki Niwa

Koichi Ushida

Yoriyuki Nagata

Isao Moribe

Kenji Nagase

Hiroyoshi Masuda

Xing Wei

Yasuhisa Fujiwara

Yanjun Shang

Kenta Sanami

Yukiko Hiroo

Dan Jang

Toru Sakai

Kazunori Watanabe

Takayuki Watanabe

Masatoshi Takahara

Akira Saito

Yasuhiro Shimizu

Kiyoshi Tsurumi

Toshio Nomura

Hiroaki Sugiura

Yasutaka Atarashi

Yuya Higuchi

Yoichi Mori

Ichiro Usami

Naoto Miura

Akira Matsuda

Tetsuo Kumagai

Shogo Sugimoto

Kei Hiroo

Hiroyuki Kozakai

Yoshitaka Nishino

Tomoko Arita

Hikaru Nagasaka

Toshiki Yamamoto

Yuhei Goshi

Satoshi Okada

Yume Hosoya

Takashi Fukukawa

A route search apparatus configured to search a route from a set place of departure to a set destination comprises network data that includes nodes and links representing a road network, an average cost value indicating an average of travel time of each of the links, and a variance value indicating a degree of variance of the travel time, and a route searcher configured to determine the route from the place of departure to the destination as a recommended route, based on the average cost value, the variance value and a weight coefficient of the variance value.

Route search apparatus, route search method and computer-readable storage medium storing program

A route search apparatus comprises a road information storage part configured to store road information including link information comprised of single link information and composite link information; and a route searcher configured to search a recommended route between two different points using the link information. The single link information includes information regarding an approach link that is a link approaching to a node at one end of a target link, an exit link that is a link exiting from a node at the other end of the target link, and a cost of the target link for entering from the approach link and exiting to the exit link. The composite link information includes information regarding an approach link that is a link approaching to a node at one end of a target link array, an exit link that is a link exiting from a node at the other end of the target link array, and a cost of the target link array for entering from the approach link and exiting to the exit link.

Route search apparatus, route search method, computer readable storage medium storing a program and data structure

Facility output systems, methods, and programs specify a purpose for which a user utilizes a facility, based on information input by the user and a facility type that enables the specified purpose to be achieved, based on stored purpose information. The stored purpose information includes facility type and the purpose that is achievable by using the facility type. The systems, methods, and programs specify a common facility type that is common to a facility type specified for a first purpose; and one of a facility type specified for a second purpose that is different from the first purpose and a facility type specified differently from the specified facility type that enables the purpose to be achieved. The systems, methods, and programs specify the facility corresponding to the specified common facility type based on stored facility information including the specified facility type and information for specifying the facility.

Facility output system, facility output method, and facility output program

A wireless communication device mounted on a mobile object, the mobile object including: a mobile communication unit that is able to connect to a mobile communication network; and a wireless network connection unit that provides a wireless network connection service based on the mobile communication network connected by the mobile communication unit, the wireless communication device includes: a satellite positioning unit configured to acquire position information on the wireless communication device based on a satellite positioning system; and a control unit configured to control a connection state of the wireless network connection service based on the position information acquired by the satellite positioning unit.

Wireless communication device mountable on mobile object, monitoring control system of wireless communication device mountable on mobile object, monitoring control method of wireless communication device mountable on mobile object, and remote control center

A travel time data processor extracts a link that is present in the neighborhood of a target link, as a reference link. The travel time data processor selects an identical time zone of the reference link that is identical with the time zone of the target link in which the number of sample data is less than a reference number, and searches for another time zone having similar statistical data to that of the selected time zone. The travel time data processor adds the number of sample data in a time zone of the target link corresponding to the searched another time zone of the reference link to the number of sample data in the time zone of the target link that is equal to or less than the reference number, and generates statistical data from the summed-up sample data.

Travel time data processing apparatus, travel time data processing method and program

Support point management systems, methods, and programs acquire a support point registered as a subject of deceleration support and exclude the support point as the subject of deceleration support in a case a vehicle travels on a new road after having traveled through the support point without deceleration at the support point.

Support point management system, method, and program

There is provided a method of collecting probe information generated during travel of a vehicle, comprising: (a) receiving probe information including travel time information of a reference area, from a vehicle traveling a reference area that includes at least one of an intersection area that is an area from an approach to an intersection to an exit from the intersection and a road area that connects with the intersection area and is an area from the exit of the intersection to an approach of another intersection adjacent to the intersection in an exit direction; and (b) storing the received probe information.

Method of collecting probe information, computer-readable recording media and travel time calculation apparatus

Route search apparatus, route search method, computer program and data structure

There are provided a deceleration end location storage system that can appropriately store a deceleration end location at which a vehicle ends deceleration in decelerating action even for a road on which the content of the decelerating action tends to vary because of a disturbance such as a road with a large amount of traffic, and a drive assist system, a drive assist method, and a computer program that can provide appropriate drive assistance for a vehicle on the basis of stored deceleration end locations. In the case where a vehicle performs decelerating action, a deceleration end location at which the vehicle ends deceleration in the decelerating action is specified. A variation range that matches the road type of a road on which the deceleration end location is provided is set. In the case where learning data stored in a learning DBalready include learning data for a different deceleration end location provided within the variation range set from the present deceleration end location, such deceleration end locations are stored as learning data for the same deceleration end location.

Deceleration end location storage system, drive assist system, drive assist method, and computer program

A map data storage device, a map data updating method, and a computer program that can shorten the time required for a map data updating process. In the case where map data stored in a navigation-side local DB of a navigation apparatus are to be updated, the navigation apparatus updates the map data stored in the navigation-side local DB on the basis of map updating data received from a map distribution center, and prepares a data reference index that associates a PID (universal identification information) included in the map data with a record number (internal identification information) included in the map data on the basis of the updated map data. After that, in the case where an application is executed by the navigation apparatus, the prepared data reference index is referenced to access the map data stored in the navigation-side local DB.

Map data storage device, map data updating method, and computer program

A travel information recording system for associating travel information on a vehicle obtained immediately after travel through a branch location with an appropriate road segment includes: travel segment specifying unit for specifying a travel segment that is a road segment in which a vehicle is traveling; and travel information recorder for recording travel information on the vehicle obtained during travel in the travel segment in association with the travel segment in a storage medium. In the case where there occurs a segment variation in which the travel segment is varied from one of several road segments branched off from a branch location, the travel information recorder acquires the travel information to be recorded in association with a post-variation segment, which is the travel segment after the segment variation, on the basis of the travel information obtained before the segment variation.

Travel information recording system, method, and program

Section acquisition systems, methods, and programs acquire a scheduled travel route of a vehicle driven by at least one of an internal combustion engine or a motor. The systems, methods, and programs divide the scheduled travel route that is in a range of a predetermined distance from a current location into a plurality of sections such that a difference in traffic congestion degree is distinguished, and divide the scheduled travel route that is not in the range of the predetermined distance from the current location into a plurality of sections such that a difference in travel load is distinguished.

Section acquisition system, section acquisition method, and section acquisition program

A travel assist system, a travel assist method, and a computer program that prevent frequent corrections of a travel plan due to variations in congestion information are provided. Congestion information is acquired from a VICS center. The current state of a vehicle is acquired. It is determined whether or not the congestion status of an expected travel route for the vehicle has been varied from the congestion information using a criterion based on the state of the vehicle. In the case where it is determined that the congestion status of the expected travel route has been varied, the travel planis corrected using the congestion status after the variation.

Travel assist system, travel assist method, and computer program

An analyzer of the invention adequately analyzes a change in road network by using probe information generated with driving of a vehicle. This analyzer determines a traffic amount of vehicles passing through a specified section included in the road network from a plurality of the probe information accumulated over a predetermined period. The analyzer also determines a discontinuity rate, which is a rate of incidents that vehicle locations are discontinuous in the specified section, from the plurality of probe information accumulated over the predetermined period. The analyzer detects a change in the road network, based on a degree of change between traffic amounts in two different periods with respect to the specified section included in the road network and a degree of change between discontinuity rates in the two different periods. The detected change in the road network can be used for survey of the road network.

Road detection logic

Growing community of inventors

Nagoya, Japan

Tomoki Kodan